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81454-25-3

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81454-25-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81454-25-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,5 and 4 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81454-25:
(7*8)+(6*1)+(5*4)+(4*5)+(3*4)+(2*2)+(1*5)=123
123 % 10 = 3
So 81454-25-3 is a valid CAS Registry Number.

81454-25-3Upstream product

81454-25-3Relevant academic research and scientific papers

INTRAMOLECULAR CYCLOADDITIONS OF NITRONES JOINED BY AMIDES TO OLEFINS

Brambilla, R.,Friary, R.,Ganguly, A.,Puar, M. S.,Sunday, B. R.,et al.

, p. 3615 - 3625 (1981)

Six nitrones joined by amides to olefins were prepared in situ from related ketones 1-3 with N-methyl- and benzylhydroxylamines.The nitrones added intramolecularly to the olefins, and the cycloadditions gave the 6-lactams 4-9 stereoselectively and regiosp

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